Fastener



F. S. CARR.

FASTENER. APPLICATION FILED mm 8, 1, 921.

Patented Oct. 31, 1922.

" Inweni'fi:

Patented Quiz. 31,

.Y' "wa ve" i, P o i FRED S. CARE, OF NEWTON, MASSACHUSETTS, ASSIGNOR TO CARR FASTEIB TER COMPANY, OF CAMBRIDGE, MASSACHUSETTS, A CORPORATION OF MAINE.

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Application filed March 8,

Y '0 all whom it may concern: I j

Be it known that l, FRED S. CAI-1n, a citizen of the United States, and aresidcut of Newton. in the county of Middlesex and Commonwealth of Massachusetts, haveim vented an Improvement in Fasteners, of which the following description, connection with the accompanying drawings, is aspecilication, like characters on the drawings representing like parts.

This invention pertains to improvements in separable fasteners. It among the objects of the invention to providea separable fastener of simple construction, great din-a bility and of superior holding power.

I In the drawings, which show a preferred form of one illustrative embodiment of my invention Figure 1 is an elevation of two pieces of fabric to which the stud and socket members of a preferred form of separable fastener are attached;

Fig. 2 is a sectiononthe line2- 2 of Fig. 1;

Fig. 3 is a front elevation of the preferred form of socket illustrated in Figs. 1 and 2;

Fig. 4 is an elevation of the preferred form of stud shown in Figs. 1 and 2; and

Fig. 5 is a section through the fastener on the line 55 of Fig. 1.

Referring to the drawings and to the preferred form of my invention selected for illustrative purposes, I have shown a stud including a head 6, a neck? and a base 8, and secured to the stud-carrying fabric 9 in any suitable way as by stitching 10. I hav shown. a cooperating socket including a casing 11 providing a. stud-receiving plate 12 having a stud-receiving aperture 13 therein and containing a spring 142 presenting two portions intersecting the stud-receiving aperture The preferred form of spring will be more fully described hereinafter. The preferred. form of socket illustrated is sewn to the socketcarrying fabric 1.5 by stitches'lfi. lVhereiny invention is utilized in connection with fastening elements adapt-' ed to be sewn. to their carrying fabrics, I prefer to make the casing'll in one piece and to provide for holding inthe spring 1 1 by a flanged-over rim 17 of the casing. The studreceiving aperture 13 is preferablynotched at one side providing the recess 18 communicating with the :tudqeceivihg aperture 13 and adapted to permit the stud to shift laterally in the socket to a small extent, sufiicient 1921. Serial No. 450,742.

to prevent separation of stud and socket by the resolution of forces arising from lateral strain between stud and socket urging the stud toward the notch, or in the general direction of the notch, the notch, however, preferably being of such dimension relative to the neck and head of the stud t rat separation of stud and socket may be effected even while under considerable lateral strain by a convenient tipping movement at an angle somewhat greater than that likely to be produced by the resolution of forces arising from lateral strains in the direction indi- (gate-d. j l i The springle. as before described, preferably intersects the stud-receiving apertrn'e 13 at opposite sides thereof as at 19 and 20.

Between these portions, the spring extends adjacent to the peripheral wall of the socket,

underlying the flange 17 at 21. At the other side of the portions 19 and 20 the spring underlies the flange 17 at 22 and 23, being bent backwardly and outwardly until they.

again underlie the flange 17 at the sides of the casing at 24 anc 25, these preferably being, as illustrated, adjacent terminal re verse bends extending outwardly and downwardly to the ends of, the spring at 26 and 27. The bends 22 and 23 are preferably spaced away from the marginal wall of the casing so that the resiliency of the spring will not be impaired by hearing against the side of the casing at these points Similarly, the bends at 21 and 25 are also preferably spaced away from the peripheral wall of the casing.

- The spring n1ay,.;if desired, be positioned relative to itscasirig by a projection 31 ex tending within the curve of the spring adjacent its central portion 21. v When the head of the stud 6 is entered through the studreceiving aperture 13 in ,1

the casing, the stud-engaging spring jaws 19 and 20 are spread apart and grip the neck 7 of the stud when the latter is fully entered preferably adjacent the edge 30 of the socket-carrying fabric 15, so that the normal lateral strain between stud and socket will lead the neck of the stud into the notch 18.

;in the socket. The notch 18 in the socket is sired to separate the stud from the socket, apull on either the stud or socket in either an axial direction or one producing the res lution of forcesunder lateralstrain will cause the stud to be released from the socket even though a'considerable amount of lateral strain between stud and socket exists at the time of separation.

While I have shownand described a preferred form of one embodiment of my in-' vention, it will be understood tliat 'changes involving omission, substitution, alteration,

and reversal of parts, and even changes in the mode oi operation, may be made without departing from the scope of my invention, which is best defined in thefol'lowing claims;

the casing, said spring. at the other side of said two portions, presenting two opposite q 1y bent reverse curves spaced away from the peripheral. wall of the casing, and said spring, beyond said reverse eurvespengaging the peripheral wall of the casing.

2. A snap fastener socket comprising, in combination, a casing providing a plate having a stud-receiving aperture therein and. a spring-in said casing formed of a single piece of wire providing two portions intersecting the stud-receiving aperture, the spring between the said two portions eX- tending adjacent to the peripheralwall of the casing, said spring, at the other side of said two portions, presenting two opposite ly bent reverse curves spaced away from the peripheral wall of the casing, and said spring, beyond said reverse curves and at generally diametrically opposite points, engaging the peripheral will of the casing.

3. A snap fastener socket comprising, in combination, a casing providing a plate havinga stu (fl-receiving aperture therein and a spring in said casing formed of a single piece of wire providing two portions intersecting "the stud-receiving aperture, the

spring between the said two portions extending adjacent to the peripheral wall of the casing, said spring, at the other side of said two portions, presenting two oppositely bent reverse curves spaced away from the peripheral wall of the casing, and said spring beyond said reverse curves presenting two additional reverse curves spaced away from the peripheral wall of said casing;

4. A socket for separable fasteners comprising-a casing presenting a plate having a tip somewhat greater than that arising from a stud-receiving aperture therein, said plate provided with a flanged-over rim, and a spring in said socket presenting two portions intersecting said aperture, said spring having at one side of said portions a part underlying said flanged-over rim, and at the other side of said portions two parts un' (lei-lying said rim, said two parts 22. 23 spaced away'from'the peripheral wall of said casing to permit resilient movement of said two parts relative to each other and relative to said casing. 1 a

5. socket for separable fasteners comprising a casing having a plate at one side with a stud-receiving aperture therein, the opposite side oi. said casing; open but pre senting a rim flanged-over from the peripheral wall of the casing, and a spring in said casing presenting a resiliently movable part underlying said rim but normally out of contact with the peripheral wall of said casing. v v r 6. A socket for separable fasteners comprising a casing having aplate at one side witha stud-receiving aperture therein, the opposite side of said casing open but presenting a rim flanged-over from the peripheral wall of the casing, and a spring in said casing presenting fourresiliently movable runs with three curved portions be tween them, all of, said curved portions underlying said rim vand at least two of said curved portions normally spaced away from the peripheral wall of said casing.

7. A. socket for separable fasteners includinga casing having a plate with a stud receiving aperture therethroughsaid plate notched at one side of said stud-receiving aperture to permit a limited lateral displacement of the stud, and a W-shaped springin said casing. 8. A socket for separable fasteners in;- cluding' a casing having a. plate with a studreceiving aperture therethrough, said plate notched at vone side of said stud-receiving aperture to permit a limited lateral displaceinent of the stud and a W-shaped spring; in said casing, said spring having the bottom curves of the W disposed at each side of side of the notched portion of the plate. and 1 spaced away from the peripheral wall of said casing. v v i :In testimony whereof, I have signed my name to this specification. 

